The Volcanic History

The Basal Volcanic Complex (ca. 160,000 to 100,000 years)
The Early Caldera Stratovolcano (ca. 100,000 to 30,000 years)
Lakki Pyroclastics and Avlaki Complex
Lacustrine and Pyroclastic Formations
The Melisseri - Evangelistra - Afionas Complex
The Emborios Complex
The Ellinika - Kyra - Lies Pyroclastic Complex
The Argos - Stavros Complex
The Main Caldera Formation (30,000 to 15,000 years ?)
The First Caldera Phase (?30,000 to 20,000 years ?)
The Second Caldera Phase (20,000 to <15,000 years ?)

Lakki Pyroclastics and Avlaki Complex

A 3 to 4 m pumice fall deposit marks the first sub-Plinian explosive period of an early caldera-forming event. It is followed by flow and surge units and terminates with a final fallout. In the northern basal parts of the caldera, exposed at cliffs along the main road, these pyroclastics reach a total thickness of approximately 5 to 10 m.

The weathered magmatic matrix of andesitic composition is black to brown and poorly vesiculated. The lithic components consist of fresh and altered andesite.

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